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// RUN — FITS
Can the Instinct MI455X run Intern-S2 Preview 397B?
Yes — here's how fast and up to what context, with real measured numbers.
Intern-S2 Preview 397B on the Instinct MI455X
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | no | — | — | — |
| Q8 | no | — | — | — |
| Q4 | yes | 331k | 55.5-67.9 t/s | ~0.1-0.1 (slow) |
Estimate (memory-bound). Beyond "max context" the KV cache spills to system RAM offload (depends on your system RAM) and speed drops to the "beyond" figure.
FAQ
Can the Instinct MI455X run Intern-S2 Preview 397B?▶
Yes. At Q4 it generates ~55.5-67.9 tok/s and fits up to 331k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~0.1-0.1 tok/s.
How much context fits?▶
At Q4, up to about 331k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.